Waterloo
At 14,444.8 residents per sq km, Waterloo is one of inner Sydney's most compressed housing markets, with 91.2% apartments and 75.2% renters shaping daily life. Its median age of 33 is 7 years below the national figure, while 59.3% of residents were born overseas. Compared with nearby Zetland and Alexandria, Waterloo sits firmly in the Green Square high-density corridor because small households, rental towers and a 75.9 income percentile all reinforce an urban, mobile resident base.
Population
16,379
Median Age
33.0
Household IncomeiMedian weekly household income (ABS Census)
$2,028/wk
DAs (12 months)iDevelopment Applications lodged in the past year
72
Median House
$940K
2024-2025 (PSI derived)
Waterloo suits buyers who want location and apartment choice more than land, because separate houses make up only 0.5% of dwellings while apartments account for 91.2%. The median house price is $940,000, with the recent series moving from $932,500 in 2024 to $950,000 in 2025, a 1.9% rise. Two-bedroom stock dominates at 53.4%, and 0 to 1 bedroom homes add 31.5%, so families needing 3 bedrooms face a thinner 13.6% segment. Mortgage costs sit at 28.5% of income, below the stress flag.
For Buyers
Waterloo suits buyers who want location and apartment choice more than land, because separate houses make up only 0.5% of dwellings while apartments account for 91.2%. The median house price is $940,000, with the recent series moving from $932,500 in 2024 to $950,000 in 2025, a 1.9% rise. Two-bedroom stock dominates at 53.4%, and 0 to 1 bedroom homes add 31.5%, so families needing 3 bedrooms face a thinner 13.6% segment. Mortgage costs sit at 28.5% of income, below the stress flag.
For Investors
Waterloo is a renter-majority market, with 75.2% of homes rented compared with 6.4% owned outright and 18.4% mortgaged. That creates a deep tenant pool, helped by a $530 weekly rent and 59.3% overseas-born population, but the 14.4% vacancy rate is the key risk because supply can dilute pricing power. Development pressure is high, with 62 lodgements in 12 months, while forecast rent growth of 51.4% points to demand recovery if new stock is absorbed.
Development Activity
Total DAs
286
Last 12 Months
72
YoY ChangeiYear-over-year change in DA lodgements
+16.1%
Avg DA CostiAverage estimated cost per DA in the past year
N/A
Monthly DA Lodgements
DA Categories
Schools in Waterloo iICSEA: school advantage index. 1000 = national avg, higher = more advantaged
Our Lady of Mount Carmel Catholic Primary School
K-6 · 76 students
Demographics
Waterloo skews younger, more educated and more internationally connected than the national profile. The median age is 33, which is 7 years below national, while 58.3% hold a university qualification, 28.2 percentage points above national. Overseas-born residents make up 59.3%, 37.7 points above national, and household size is 1.8, lower by 0.7. English, Chinese and Irish ancestries are prominent, with Mandarin the largest non-English language at 961 speakers.
Age Distribution
Bedrooms
Dwelling Structure
0.5%
Houses
8.1%
Townhouse
91.2%
Apartment
Tenure
Housing in Waterloo is defined by apartments, renting and small household formats. Apartments make up 91.2% of dwellings, far higher than the 8.1% semi-detached share and 0.5% separate-house share. The latest median in the price series is $950,000, equal to the 2025 peak and 1.9% above 2024. Tenure is tilted toward renters at 75.2%, compared with 18.4% paying a mortgage and 6.4% owned outright. Rent-to-income is 26.1% and mortgage-to-income is 28.5%, both below stress flags.
Median House Price Trend
Source: State Valuer-General
Mortgage / mo
$2,500
Rent / wk
$530
HH Size
1.8
Personal Income / wk
$1,172
Vacancy Ratei% of dwellings unoccupied on Census night (ABS 2021)
14.4%
Unoccupied
1,349
Rent / IncomeiMedian rent as % of household income. Over 30% = housing stress
26.1%
Mortgage / IncomeiMedian mortgage as % of household income. Over 30% = housing stress
28.5%
Community Profile
Languages Spoken at Home
Ancestry
Household Composition
55.9%
Couples, no children
8,793
Total families
Economy & Employment
Waterloo's workforce is anchored by knowledge and service jobs, which explains its high education profile and 75.9 household income percentile. Professional and tech work leads at 21.0% or 1,563 workers, followed by finance at 10.9%, healthcare at 10.1%, education at 7.3% and retail at 7.0%. Occupations are led by 3,746 professionals and 1,618 managers. SEIFA is mixed: education and occupation sit in decile 9, but economic resources are decile 1, reflecting high skill levels alongside heavy renting and smaller households.
Unemployment
8.5%
Labour Force
11,551
Unemployed
978
Quarterly Trend
Source: SALM Dec-25
Socio-Economic Indexes (SEIFA)iABS index ranking suburbs from 1 (most disadvantaged) to 10 (most advantaged)
Full-time
75.0%
Part-time
18.2%
Participation
58.4%
Employed
8,220
Occupations
Top Industries
University
58.3%
Postgraduate
18.3%
Born Overseas
59.3%
Dwellings
8,037
Transport to Work
Waterloo works best for residents who value walkable inner-city access and apartment convenience. Driving is still the largest commute mode at 50.1%, but walking and cycling at 24.8% is higher than public transport at 20.3%, reflecting short trips to nearby employment and retail areas. The local school base is compact: 1 Catholic primary, Our Lady of Mount Carmel, with ICSEA 938 and 76 enrolments, giving an ICSEA range of 938 to 938. With no suburb crime rate published, building security and street position matter in buyer checks.
Drive
50.1%
Public Transport
20.3%
Walk / Cycle
24.8%
Work from Home
N/A
Population Forecast
+2.64%/yr
(+492 people/yr)
EstablishedWaterloo's forecast is for continued growth rather than a pause. The trend rate is 2.64% a year, equal to about 492 additional residents annually, and the medium projection rises from 18,631 in 2025 to 21,894 by 2031. Migration is the driver: average net overseas inflow is +905 a year, higher than the net internal outflow of -484 a year. The gentrification score is 10 and the stage is Not gentrifying, so growth is more about population turnover and apartment demand than broad-based reinvention.
Historical + Forecast
Hamilton-Perry + Holt smoothing on ERP 2001-2025
Age Cohort Forecast
Primary Driver
Overseas Migration
Net Overseas / yr
+905
Net Internal / yr
-484
Gentrification Signal
Not gentrifying
Net internal outflow -484/yr, Strong overseas inflow +905/yr
National Ranking iPercentile rank among ~15,000 AU suburbs. 90% = higher than 90% of suburbs
How Waterloo compares to ~15,000 Australian suburbs
Frequently Asked Questions
Is Waterloo a good suburb to live in?
Waterloo can suit renters, professionals and apartment buyers who want dense inner-city living. It has 16,379 residents, a median age of 33 and 91.2% apartment stock, so it is better for compact households than buyers seeking land.
What is the median house price in Waterloo?
The median house price in Waterloo is $940,000. Recent price history shows $932,500 in 2024 and $950,000 in 2025, a 1.9% lift, although the market is mainly apartments rather than separate houses.
What schools are in Waterloo?
Waterloo has 1 listed local school: Our Lady of Mount Carmel Catholic Primary School. It is a Catholic primary with 76 enrolments and an ICSEA of 938, so many households also assess nearby suburbs for broader school choice.
Is Waterloo safe?
A suburb-level crime rate is not available for Waterloo, so safety should be assessed by street, building entry and lighting. The suburb has 16,379 residents and 91.2% apartments, making building management a practical factor.
Is Waterloo good for property investment?
Waterloo has strong rental depth, with 75.2% of dwellings rented and weekly rent at $530. Investors should balance that against a 14.4% vacancy rate and 62 development lodgements, which can add near-term supply.
How is Waterloo's population changing?
Waterloo is forecast to keep growing at 2.64% a year, or about 492 people annually. The medium projection reaches 21,894 residents by 2031, driven by +905 overseas migration a year despite -484 internal migration.
What languages are spoken in Waterloo?
Waterloo is highly multilingual, with 59.3% of residents born overseas. Mandarin is the largest listed non-English language at 961 speakers, followed by Cantonese at 221, Russian at 185 and Portuguese at 132.
Is there much development in Waterloo?
Yes. Waterloo recorded 62 development lodgements in the past 12 months, including food premises, retail alterations and seniors housing works. That activity reflects demand but can also increase competition for landlords.
How to read these comparisons
Phrases like "above the national average" reference the unweighted median across Australian suburbs with more than 1,000 residents, not population-weighted national figures. Suburb-level medians are more useful for ranking suburbs against each other; ABS census headlines are population-weighted (so dominated by Sydney and Melbourne) and can read very differently.
Current baseline (refreshed 2026-05-10): median age 40, university-educated 30.1%, born overseas 21.6%, average household size 2.5 people.
Data sources: ABS 2021 Census (demographics, income, tenure), state Valuer-General (house prices), Department of Jobs SALM (unemployment), ACARA (school ICSEA), state Crime Statistics agencies (offences), council DA portals (development applications). Population forecasts use a Hamilton-Perry cohort model calibrated to ABS ERP.
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